The nouveau/opensource work fine with xrandr screen reflection (mirror image) ala
xrandr --output HDMI --reflect x
or (when using then closed source drivers)
xrandr -x
However the HDMI Audio output is somewhat broken at the moment.
The closed source Nvidia/290 work fine with the HDMI audio out and screen rotation, but I cant seem to find any clues on how to reflect the screen.
Does anybody have any experience or tips to get the screen reflection working with the closed source drivers?